WO2006027834A1 - Mobile station, base station, communication system, and communication method - Google Patents

Abstract

There are included mobile and base stations each comprising a wireless link control part for inputting/outputting data to be transmitted/received to/from an upper protocol layer via wireless channels; a media access control part for transmitting/receiving data to/from the wireless link control part via a logical channel; a physical layer control part for transmitting/receiving data to/from the media access control part via a transport channel to control wireless communication; a wireless link control part; a media access control part; and a wireless resource control part for transmitting/receiving control data to/from the physical layer control part. The mobile station transmits report information, such as transmission data information related to data that is held by the mobile station and that has not been transmitted yet, to the base station by multiplexing the transmission data information on a packet data transmission channel. The base station uses the received transmission data information to perform a wireless resource assignment.

Description

 Mobile station, base station, communication system, and communication method

 Technical field

 The present invention relates to a mobile station, a base station, a communication system, and a communication method for communicating packet data on a CDMA (Code Division Multiple Access) mobile communication system.

 Background art

 [0002] As a high-speed mobile communication system adopting the CDMA system, a communication standard called the third generation has been adopted as IMT-2000 by the International Electrical Union (ITU). W-CDMA (FD D: Frequency Division Duplex) started commercial service in Japan in 2001. The W-CDMA (FDD) system is a third-generation mobile communication system that aims to obtain a maximum communication speed of about 2 Mbps per mobile station. The first specification for the W—CDMA (FDD) system was determined in the 1999 release, compiled in 1999 by the 3GPP (3rd. Generation Partnership Project) standardization body.

 The various standards of the release are published on the Internet <URL: http: ZZwww.3gpp.org/ftp/Specs/archive/>. Currently, Release 4 and Release 5 are specified as other new editions of Release 1 999, and Release 6 is in preparation.

 [0003] The above-mentioned standards originally assumed continuous data services such as voice data. For this reason, even when the mobile station power performs burst transmission such as packet transmission to the base station, a dedicated channel DCH (Dedicated CHannel) dedicated to each mobile station is always secured as a radio resource. This is problematic from the standpoint that effective use of wireless resources is required with the recent increase in packet data usage due to the spread of the Internet.

In addition, since data transmission from the mobile station is performed by autonomous transmission control (Autonomous Transmission) by the mobile station, the transmission timing from each mobile station is arbitrary or random. For this reason, transmission from other mobile stations is not possible in the CDMA communication system. The power that becomes the source of all interference In the base station, the amount of interference noise and the amount of fluctuation during reception can only be predicted statistically. Therefore, in radio resource management, it is necessary to perform radio resource allocation control that secures a margin by suppressing the throughput and the maximum transmission rate of the mobile station assuming that the amount of fluctuation of interference noise is large.

 Radio resource management for mobile station transmission (uplink) in the W—CDMA standard is actually performed by a base station controller (RNC: Radio Network Controller) that coordinates multiple base stations rather than the base station itself. Hereinafter, the base station and the base station control device are collectively referred to as the base station side. Radio resource management performed by the base station controller (RNC) for mobile stations and the exchange of management information require a relatively long processing time of about several hundreds of milliseconds. Therefore, there is a problem that high-speed radio resource allocation control cannot be performed while monitoring changes in the high-speed radio propagation environment and the amount of interference from other mobile stations.

 Non-Patent Document 1 proposes an on-demand channel allocation method in the uplink as a technology for improving the uplink performance Z function based on the above-mentioned current standards (release 1999, 4, 5). .

According to what is shown in Fig. 1 of Non-Patent Document 1, first, a mobile station (UE: User Equipment) having a packet to be transmitted receives information on the amount of data in the untransmitted bucket as a packet data transmission request (UE). Queue size) and mobile station transmission power margin information (Power Margin) are notified to the base station (NodeB) via a transmission request channel (USICCH: Uplink Scheduling Informati on Control Channel). Upon receiving this request, the base station notifies the mobile station of the radio resource allocation result (scheduling result) such as the transmission timing via the downlink allocation channel control channel (DSACCH). The mobile station transmits packet data to the base station via a data transmission channel (EUDCH: Enhanced Uplink Dedicated Transport Channel) according to the received scheduling result. Information such as the modulation method at the time of packet data transmission is separately transmitted to the base station via a modulation format information channel (UTCCH: Uplink TFRI Control Channel). The base station determines the reception of the knot data, and sends the ACKZNACK of the determination result to the notification channel ( Notify the mobile station via DANCCH (Downlink Ack / Nack Control Channel). Note that these channels are assumed to be expansions of new standard channels or introduction of new channels, and the details are uncertain.

[0005] In addition, Non-Patent Document 2 proposes a technique created based on Non-Patent Document 1!

 In addition, as a conventional example of the technique for notifying the transmission data amount information from the mobile station to the base station, the mobile station responds to polling from the base station as in the packet communication method described in Patent Document 1, for example. The mobile station notifies the base station of the packet size to be transmitted, as in the case of notifying the amount of data to be transmitted or the packet transmission method described in Patent Document 2, and based on the packet size notified by the base station. Wireless resources are allocated by the base station based on available transmission power, transmission data amount, QoS, etc. notified by mobile station power as disclosed in Patent Document 3. is there.

[0006] However, Patent Document 1, Patent Document 3, and Non-Patent Documents 1 and 2 describe a specific method such as a format at the time of transmission data information transmission. .

 In the conventional W-CDMA standard, information on the amount of untransmitted data transmitted from the mobile station is sent to the base station controller (RNC) as it is when it is received by the base station. For this reason, the base station cannot grasp information relating to the amount of untransmitted data. Therefore, it is impossible to realize uplink radio resource control by the base station as described in Patent Document 1, Patent Document 3, and Non-Patent Documents 1 and 2. In addition, in the conventional W-CDMA standard, there is no means for notifying the base station (NodeB) of information related to the untransmitted data amount of the mobile station from the base station controller. Even if it is possible to provide a means for sending the information obtained by the base station controller to the base station, the transmission period of the untransmitted data amount information from the mobile station to the base station controller is 250 ms Z500 ms Z to Z6000 ms. Since it is set for a long time, there is a problem that high-speed radio resource control cannot be performed in the base station.

[0007] Further, in Non-Patent Document 3, the notification timing of mobile station information such as data amount information of untransmitted data and transmission power margin related to the on-demand channel allocation method described in Non-Patent Document 1 The technology about is proposed. Non-Patent Document 3 includes periodic Various transmission methods such as transmission methods are described.

 However, Non-Patent Document 3 describes only a proposal related to notification timing, and does not describe a specific method for the format at the time of transmission, transmission channel designation, or the like.

 Non-Patent Document 2 describes another method of on-demand channel allocation, as a packet data transmission request, not the amount of untransmitted packet data of the mobile station described above but the transmission transmission rate desired by the mobile station ( A method for reporting (Rate Request) to the base station in the uplink is also described (Rate control scheduling). The base station performs scheduling based on the transmission transmission rate request from each mobile station in the cell, and then notifies each mobile station of the permitted transmission transmission rate (Rate Grant) as a scheduling result through the downlink. . However, as in Non-Patent Document 1, the specific method for the transmission format, transmission channel designation, etc. is described.

 [0008] The present invention has been made to solve the above-described problems, and reports information from a mobile station necessary for uplink radio resource control in a base station, as well as the mobile station power and the base station. The purpose is to obtain a mobile station, a base station, a communication system, and a communication method suitable for direct and high-speed notification.

 Patent Document 1: Japanese Patent Application Laid-Open No. 64-42951

 Patent Document 2: Japanese Patent Laid-Open No. 2002-374321

 Patent Document 3: Japanese Patent Laid-Open No. 2003-46482

Non-Special Reference 1: AHD4: Reducing control channel overhead for Enhanced Uplink ", [online], January, 7th— 11th, 2003, 3GPPRAN1 # 30, [searched on 7th of January 2004], Internet <URL: http : ZZwww. 3gpp. Org / ftp / tsg_ran / WGl—RLl / TSGRl—30 / Docs / Zips / Rl— 030067. zip> Non-Patent Literature 2: "3rd Generation Partnership Project; Technical Specific ation Group Radio Access Network; Feasibility Study for Enhanced Uplink for UTRA FDD (Release6) ,,, [online], 2004—3, TR25. 896 v6. 0.0, [May 10 2004 search], Internet URL: http: ZZwww. 3gpp org / ftp / Specs / 2004-03 / Rel-6 / 25 series / 25896-600.zip> Non-Patent Document 3: "Uplink signaling of scheduling information", [online], [searched January 7, 2004], Internet URL: http: ZZwww. 3gpp. Org / ftp / tsg—ran / WGl—RLl / TSGRl —34 / Docs / Zips / Rl— 031056. zip> Disclosure of Invention

 [0010] A mobile station according to the present invention provides a logical link between a radio link controller and a radio link controller that inputs and outputs data to and from a base station via a radio channel with an upper protocol layer. Physical layer control that controls the wireless communication with the base station by inputting / outputting data via the transport channel between the media access control unit that performs data input / output via the channel and the media access control unit A radio resource control unit that inputs and outputs control data between the radio link control unit, the media access control unit, and the physical layer control unit, and the media access control unit packetizes report information for the base station. It is multiplexed to the data transmission channel and transmitted to the base station.

 This enables uplink radio resource control in the base station, and also enables higher-speed control compared to radio resource control by the base station control device, thereby improving the efficiency of the communication system and improving the overall cell capacity. Throughput is improved.

[0011] A base station according to the present invention provides a logical link between a radio link control unit that inputs / outputs data to / from a mobile station via a radio channel with a higher protocol layer, and a radio link control unit. Physical layer control that controls the wireless communication with the mobile station by inputting / outputting data via the transport channel between the media access control unit that inputs / outputs data via the channel and the media access control unit A radio resource control unit that inputs and outputs control data between the mobile station and the radio link control unit, the media access control unit, and the physical layer control unit. Radio resource allocation is performed using report information multiplexed on the data transmitted by the channel.

 This enables uplink radio resource control in the base station, and also enables higher-speed control compared to radio resource control by the base station control device, thereby improving the efficiency of the communication system and improving the overall cell capacity. Throughput is improved.

[0012] A communication system according to the present invention communicates with a higher protocol layer via a radio channel. Between a radio link control unit that inputs and outputs data to be transmitted and received and a radio link control unit, a media access control unit that inputs and outputs data via a logical channel, and a media access control unit Control data input / output between the physical layer control unit that performs data input / output via port channels and controls wireless communication, and the radio link control unit, media access control unit, and physical layer control unit A mobile station having a radio resource control unit for performing transmission and a base station. The mobile station multiplexes report information on a packet data transmission channel and transmits it to the base station, and the base station receives a report from the received mobile station. Information is used to allocate radio resources.

 This enables uplink radio resource control in the base station, and also enables higher-speed control compared to radio resource control by the base station control device, thereby improving the efficiency of the communication system and improving the overall cell capacity. Throughput is improved.

 [0013] A communication method according to the present invention is provided between a radio link control unit and a radio link control unit that input / output data to / from a base station via a radio channel with an upper protocol layer. Controls wireless communication with the base station by inputting / outputting data via the transport channel between the media access control unit that inputs / outputs data via the logical channel and the media access control unit Mobile station equipped with a physical layer control unit, a radio link control unit, a media access control unit, and a radio resource control unit that inputs and outputs control data between the physical layer control unit and packet information It is multiplexed to the data transmission channel and transmitted to the base station, and radio resource allocation is performed using the mobile station power report information received by the base station.

 This enables uplink radio resource control in the base station, and also enables higher-speed control compared to radio resource control by the base station control device, thereby improving the efficiency of the communication system and improving the overall cell capacity. Throughput is improved.

 Brief Description of Drawings

FIG. 1 is a schematic diagram showing a configuration of a communication system according to Embodiment 1 of the present invention.

 FIG. 2 is a block diagram showing a configuration of a mobile station according to Embodiment 1 of the present invention.

FIG. 3 is a diagram showing a multiplex relationship between channels in each part of a mobile station according to Embodiment 1 of the present invention. FIG. 4 is a block diagram showing a configuration of a radio link control unit of a mobile station according to Embodiment 1 of the present invention.

 FIG. 5 is a block diagram showing a configuration of a media access control unit of a mobile station according to Embodiment 1 of the present invention.

 FIG. 6 is a diagram showing input / output data between a radio link control unit and a media access control unit at the time of transmission by a mobile station according to Embodiment 1 of the present invention.

[7] FIG. 7 is a block diagram showing a configuration of a physical layer control unit of a mobile station according to Embodiment 1 of the present invention.

 FIG. 8 is a diagram showing the principle of channel mutual multiplexing in the media access control unit and physical layer control unit of the mobile station according to Embodiment 1 of the present invention.

 FIG. 9 is a block diagram showing the configuration of the base station side (base station, base station control device) according to Embodiment 1 of the present invention.

 FIG. 10 is a block diagram showing a configuration of a media access control unit on the base station side according to Embodiment 1 of the present invention.

[11] FIG. 11 is a block diagram showing a configuration of a physical layer control unit on the base station side according to Embodiment 1 of the present invention.

 [Fig. 12] Fig. 12 is a diagram showing a flow of packet transmission to the base station in the mobile station power according to Embodiment 1 of the present invention.

 FIG. 13 is a block diagram showing a configuration of a MAC-e unit of a mobile station according to Embodiment 1 of the present invention.

 FIG. 14 is a diagram showing a MAC-e PDU format according to the first embodiment of the present invention.

FIG. 15 is a diagram showing a modification of the MAC-e PDU format according to the first embodiment of the present invention.

 FIG. 16 shows a MAC-e PDU format according to the second embodiment of the present invention.

 FIG. 17 is a diagram showing a MAC-e PDU format according to the third embodiment of the present invention.

 FIG. 18 is a diagram showing a MAC-e PDU format according to the fourth embodiment of the present invention.

FIG. 19 is a diagram showing a MAC-e PDU format according to the fifth embodiment of the present invention. FIG. 20 is a block diagram showing a configuration example of a media access control unit of a mobile station according to Embodiment 5 of the present invention.

 FIG. 21 is a diagram showing a parameter setting flow according to the first to fifth embodiments of the present invention.

 FIG. 22 is a diagram showing a STATU S PDU transmission flow between a base station controller and a mobile station according to Embodiment 6 of the present invention.

 FIG. 23 is a block diagram showing a configuration of a media access control unit of a mobile station according to Embodiment 6 of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, in order to describe the present invention in more detail, the best mode for carrying out the present invention will be described with reference to the accompanying drawings.

 Embodiment 1.

 FIG. 1 is a schematic diagram showing a configuration of a communication system 101 according to Embodiment 1 of the present invention.

 As shown in the figure, the communication system 101 includes a mobile station 102, a base station 103, and a base station controller 104. The base station 103 communicates with a plurality of mobile stations 102 within a certain range. The communication range of the base station 103 is called a sector or a cell. In the figure, only one mobile station 102 is shown! /.

 The base station controller 104 is connected to a communication network 105 such as a public telephone network or the Internet, and relays packet communication between the base station 103 and the communication network 105.

 In the W—CDMA standard, the mobile station 102 is called UE (User Equipment), the base station 103 is called NodeB, and the base station controller 104 is called RNC (Radio Network Controller).

 Data communication between the mobile station 102 and the base station 103 is performed using a plurality of radio links (channels).

In the physical control channel, the DPCCH 106 (Dedicated Physical Control CHannel) used for the uplink from the mobile station 102 to the base station 103 and the DPCCH 107 used for the downlink to the mobile station 102 are also used. is there. Transmission / reception timing between the mobile station 102 and the base station 103 using DPCCH 106, 107 Synchronization control or the like is performed, and physical wireless communication is maintained.

 The physical channel for data transmission includes DPDCH (DCH) 108 used for the uplink and DPDCH (DCH) 109 used for the downlink. The DPDCH (DCH) 108 and 109 are used to transmit / receive data corresponding to the conventional standard channel (DCH) between the mobile station 102 and the base station 103.

 DPDCH (E—DCH) ZDPCCH (E—DCH) 110 is a data transmission physical channel Z transmission physical for transmitting E-DCH data and modulation information during E-DCH data transmission in the uplink. Control channel. DPDCH (E-DCH) and DPC CH (E-DCH) are transmitted in pairs.

 The E-DPCCH 111 is used to notify the mobile station 102 of the result of radio resource allocation in the base station 103 and the result of data reception determination (ACKZNACK) in the base station 103 in the downlink.

 Here, DPDCH (DCH) 108 and DPDCH (E-DCH) 110 can transmit a total of up to six by using a plurality of channel separation spreading codes simultaneously. It is also possible to use DPDCH, a spread code for channel separation, for DCH or E-DCH.

 Note that these channels are channels that are not used in the conventional standards, and when newly set, the compatibility with the conventional standards (Backward Compatibility) ), The format is additionally defined.

 FIG. 2 is a block diagram showing a configuration of mobile station 102 according to Embodiment 1 of the present invention.

 As shown in the figure, the mobile station 102 includes an upper layer block 201, a radio link control unit 202, a media access control unit 203, a physical layer control unit 204, an antenna 205, and a radio resource control unit 206.

 [0018] The input / output relationship of each part of the mobile station 102 will be outlined.

The upper layer block 201 is an upper layer block of the mobile station 102, and performs predetermined processing by a known technique in an upper protocol layer such as an application or a TC PZIP layer. Also, output one or more data (TXdata) to be transmitted to the base station 103 to the radio link control unit 202. To do. Similarly, one or more data (RXdata) received from the base station 103 via the radio link control unit 202 is input.

 Further, the radio link control unit 202 exchanges data with the media access control unit 203 by using one or more logical channels LOGch set with the media access control unit 203. Further, the radio link control unit 202 outputs the untransmitted data amount information LOGbuffer in the transmission buffer to the media access control unit 203.

 The media access control unit 203 further exchanges data with the physical layer control unit 204 through one or more transport channels TRch set with the physical layer control unit 204. The physical layer control unit 204 further includes Radio communication is performed with the base station 103 by transmitting and receiving radio frequency signals via the antenna 205.

 The radio resource control unit 206 includes an upper layer block 201, a radio link control unit 202, a media access control unit 203, a physical layer control unit 204, and various control information UPcont, RLC (Radio).

Link Control) cont ゝ MAC (Media Access Control) cont ゝ PHY (Physical) Exchange cont. These are information used in the publicly known technology and information unique to the first embodiment.

 FIG. 3 is a diagram illustrating the multiplex relationship between each block of mobile station 102 and each channel assumed in the first embodiment.

 In Embodiment 1, it is assumed that one communication service is performed. Also, it is assumed that service transmission / reception data (TXdata, RXdata) is assigned to the logical channel DTCH (Dedicated Traffic CH annel).

[0020] For uplink, transmission data (TXdata) is assigned to the logical channel DTCH. DTCH data is assigned to E-DCH, which is a transport channel. The E-DCH data is assigned to the uplink DPDCH (E—DCH) 110. On the other hand, various control information transmitted from the radio resource control unit 206 to the base station control device 104 via the base station 103 is assigned to the radio link control unit 202! / And to the logical channel DCCH (Dedicated Control CHannel). It is done. DCCH data is allocated to the uplink DCH. The allocation method in Embodiment 1 is an example, and the setting is default. Set before or during data communication.

 The physical layer control unit 204 generates data for DPCCH 106 and DPCC H (E-DCH) 110, which are uplink control channels.

 On the other hand, in the downlink, downlink DPDCH (DCH) 109 data is allocated to the DCH. DCH data is assigned to DTCH and DCCH. Received data (RXdata) is extracted from the DTCH force. Further, the physical layer control unit 204 uses the DPCCH 107 and E-DPCCH 111 for downlink.

FIG. 4 is a block diagram showing a configuration of radio link control section 202 of mobile station 102. As shown in the figure, the radio link control unit 202 includes a reception buffer 501a, a reception buffer 501b, a transmission buffer 502a, a transmission buffer 502b, an RLC control unit 503, and a buffer monitoring unit 504.

 [0022] The input / output relationship of each unit of the radio link control unit 202 will be outlined.

 The reception buffer 501a inputs DTCH data from the media access control unit 203 and outputs reception data (RXdata) to the upper layer block 201. The reception buffer 501b inputs DCCH data from the media access control unit 203 and outputs control information (R Xcontrol) to the RLC control unit 503. The transmission buffer 502 a receives transmission data (TXdata) from the upper layer block 201 and outputs DTCH data (RLC PDU) to the media access control unit 203. The transmission buffer 502b receives control information (TXcontrol) from the RLC control unit 503 and outputs DCCH data (RLC PDU) to the media access control unit 203. Further, the transmission buffers 502a and 502b output information (Data info) related to the amount of data stored in each buffer to the noffer monitoring unit 504.

Based on the data amount information (Data info), the noffer monitoring unit 504 multiplexes the data amount information (DCH LOGbuffer) of each logical channel multiplexed on the DCH and each logical channel multiplexed on the E-DCH. Data amount information (EDCH LOGbuffer) is output to the media access control unit 203. There are multiple pieces of data amount information because the data amount information of the logical channel assigned to the DCH and the data amount information of the logical channel assigned to the E-DCH are separately sent to the media access control unit 203. This is for sending. in this way The function of measuring data volume information for each transport channel is called traffic volume measurement in the conventional standard and is defined in the standard document TS25.331. In Embodiment 1, Traffic volume measurement is applied to E-DCH as well as DCH, which is a conventional channel.

 The RLC control unit 503 controls the radio link control unit 202 as a whole. Further, it exchanges control information RLCcont with the radio resource control unit 206. RLCcont includes information used in known technology and information according to the present invention.

FIG. 5 is a block diagram showing the configuration of the media access control unit 203 of the mobile station 102.

 The media access control unit 203 includes a reception buffer 601, a reception system MAC-d unit 602, a transmission system MAC-d¾603, t-off: r604a, EDGH knob: r604b, MAC-e¾605, MAC control unit 607. The communication amount measuring unit 608 is provided.

 The MAC-e unit 605 includes a data amount information unit 606 and a control information multiplexing unit 610.

[0024] The input / output relationship of each unit of the media access control unit 203 will be outlined.

 The reception buffer 601 receives DCH data from the physical layer control unit 204 and outputs the reception DCH data to the reception MAC-d unit 602. The receiving MAC-d section 602 is multiplexed with the input DCH! And separates the data of the logical channels DTCH and DCCH using known techniques and outputs them to the reception buffers 501a and 501b of the radio link control section 202, respectively. To do. The transmission system MAC—d unit 603 multiplexes or distributes the logical channel DTCH and DCCH data using a known technique and outputs it to the transmission buffer 604a as DCH data, or sends it to the MAC—e unit 605 for MAC—d flow data (MAC— d PDU). The communication amount measurement unit 608 receives the data amount information DCH LOGbuffer and EDCH LOGbuffer from the radio link control unit 202. Further, the traffic volume measuring unit 608 outputs traffic volume report information (Traffic Report) to the MAC control unit 607 in order to notify the base station control device 104 of the data volume information via the base station 103.

The MAC-e unit 605 receives MAC-d flow data from the transmission system MAC-d unit 603 and outputs E-DCH data (MAC-e PDU) to the E-DCH buffer 604b. Also, in the MAC-e unit 605, the E-DCH data amount information from the radio link control unit 202 (EDCH LOGbuffer) is input to the data amount information unit 606, and the second data amount information (TRbuffer) is output from the data amount information unit 606 to the control information multiplexing unit 610. Details of the operation of the MAC e unit 605 will be described later.

 The MAC control unit 607 controls the media access control unit 203 as a whole. At the same time, control information (MACcont) including information necessary for known technology and information necessary for the present invention is exchanged with the radio resource control unit 206.

 FIG. 6 is a diagram showing input / output data of the mobile station 102 between the radio link control unit 202 and the media access control unit 203 at the time of transmission. Here, E-DCH-related items are described, and those related to DCH are not directly related to the present invention, so the description thereof is omitted. In the media access control unit 203, the MAC-d unit 603 is a component existing in the conventional standard. Minutes. The MAC-e part 605 is a part related to E-DCH.

 When transmission data (TXdata) is supplied from the upper layer block 201 to the radio link control unit 202, it is output as DTCH data to the media access control unit 203 after various processes. The DTCH data input to the media access control unit 203 is input to the MAC-d unit 603 in the media access control unit 203, and then input to the MAC-e unit 605 as MAC-d flow after various processing. . Next, the MAC-d flow data (MAC-d PDU) input to the MAC-e unit 605 is output as E-DCH data from the MAC-e unit 605 through various processes.

 Data input to the radio link control unit 202 is called an RLC SDU (Service Data Unit) in the radio link control unit 202. In addition, data output from the radio link control unit 202 is transmitted to the RLC PDU (Protocol Data Unit) in the radio link control unit 202.

).

 The data input to the MAC-d part 603 is called MAC-d SDU in the MAC-d part 603. The data output from the MAC-d unit 603 is called a MAC-d PDU in the MAC-d unit 603.

Data input to the MAC-e unit 605 is referred to as MAC-e SDU in the MAC-e unit 605. The data output from MAC-e unit 605 is stored in MAC-e unit 605. Called MAC—e PDU.

 FIG. 7 is a block diagram showing the configuration of the physical layer control unit 204 of the mobile station 102. The physical layer control unit 204 includes a reception unit 701, a demodulation unit 702, a separation unit 703, a multiplexing unit 704, a modulation unit 705, a transmission unit 706, a PHY control unit 707, and an antenna 205.

 [0027] The input / output relationship of each unit of the physical layer control unit 204 will be outlined.

 The receiving unit 701 converts a radio frequency signal received from the base station 103 via the antenna 205 into a baseband signal using a known technique, and then outputs the baseband signal to the demodulating unit 702. Demodulation section 702 demodulates the baseband signal input from reception section 701 using a known technique, and then outputs downlink physical channels DPDCH, DPCCH, and E-DPCCH to demultiplexing section 703. Separating section 703 separates DCH data and data for physical control channels DPCCH and E-DPCCH from the input DPDCH, DPCCH, and E-DPCCH using known techniques. Separating section 703 outputs DCH data and E-DPCCH data to media access control section 203 and outputs DPCCH data to PHY control section 707. In Embodiment 1, the DCH is the only transport channel multiplexed on the received DPDCH.

 On the other hand, multiplexing section 704 receives uplink DCH data and E-DCH data from media access control section 203. The multiplexing unit 704 receives uplink DPCCH data and DPCCH (E-DCH) data from the PHY control unit 707. Multiplexer 704 multiplexes various input channel data using a known technique, and outputs the result to modulator 705 as transmission physical channel DPDCH, DPCCH, and DPCCH (E-DCH) data. Modulation section 705 modulates the input data of transmission physical channels DPDCH, DPCCH, and E-DPCCH using a known technique, and then outputs the modulated data to transmission section 706 as a transmission baseband signal. In Embodiment 1, DPDCH, DPCCH, and E—DPCCH are code-multiplexed using different spreading codes, but the multiplexing method itself is not limited to that in Embodiment 1.

Transmitter 706 converts the input baseband signal into a radio frequency signal using a known technique. The converted radio frequency signal is transmitted to the base station 103 via the antenna 205. The PHY control unit 707 controls the entire physical layer control unit 204. In addition, the PHY control unit 707 is necessary for information necessary for the known technology and the present invention with the radio resource control unit 206. Exchanges control information PHYcont including various information.

[0028] FIG. 8 is a diagram showing the multiplexing relationship between the transport channel and the physical channel in the uplink according to Embodiment 1, and the principle of channel multiplexing. A similar principle of channel multiplexing is specified in the standard TS25.213. Further, this multiplexing process is performed by the physical layer control unit 204 of the mobile station 102.

 In the figure, DPDCH— DPDCH is DPDCH (DCH) 108 or DPDCH (E— DC

 1 6

 H) Equivalent to 110. HS-DPCCH is a physical channel added in Release 5 and is not relevant to the present invention, so its description is omitted. C for DPDCH (DCH) d

 This is a channel separation spreading code. C is a spreading code for channel separation for DPCCH. C is a spreading code for channel separation for DPCCH (E—DCH). C is H

 T hs

S—Spread code for channel separation for DPCCH. C is eu for DPDCH (E—DCH)

 This is a channel separation spreading code. β

 d is the signal amplitude coefficient for DPDCH (DCH)

. β is the signal amplitude coefficient for DPCCH. β is the signal amplitude c hs for HS—DPCCH

 It is a coefficient. β is the signal amplitude coefficient for DPCCH (E-DCH). β is DPDC

 T eu

 This is the signal amplitude coefficient for H (E-DCH). S is the scramble code for mobile station identification dpch, n

 No.

 [0029] DPDCH, DPDCH, DPDCH and DPCCH (E—DCH) are for each channel.

 1 3 5

 It is multiplied by the spreading code for separation and the signal amplitude coefficient, and then added by the I-axis adder (∑). On the other hand, DPDCH, DPDCH, DPDCH, DPCCH, and HS-DPCCH

 2 4 6

 Each channel spreading code and the signal amplitude coefficient are multiplied, and then added by a Q-axis adder (∑). The output of each adder becomes the I and Q components of the complex signal (= I + jQ).

 Next, DPDCH, DPDCH, DPDCH, DPCCH, H calculated by the Q-axis adder

 2 4 6

 S—DPCCH is multiplied by an imaginary number so that it can be assigned to the Q-axis side of the complex signal. This indicates that the mobile station 102 actually processes the Q component of the complex signal.

 Then, DPDCH, DPDCH, DPDCH and DPCC calculated by I-axis adder

 1 3 5

H (E—DCH) is added to the adder (+). This results in a so-called IQ multiplexed complex signal. Next, the IQ multiplexed complex signal is scrambled for mobile station identification. The code S is multiplied by a multiplier (X). The generated signal is sent from the physical layer control unit 204 to dpch, n

 Radio transmission is performed to the base station 103 via the antenna 205. Note that the spread code for channel separation and the signal amplitude coefficient may have different specifications from the conventional standard in the new standard version as new specifications (E-DCH) are added. For example, if the PAR (Peak to Aver age) of the multiplexed signal increases as a result of additional code multiplexing of DPDCH for EDCH, the increase in PAR is mitigated by changing the channel separation spreading code and the signal amplitude coefficient.

 [0030] Next, the configuration on the base station side will be described. The base station side includes a base station 103 and a base station control device 104. The basic configuration on the base station side is almost the same as the configuration of the mobile station 102 in which the uplink-related block and the downlink-related link block are interchanged. Therefore, mainly the blocks different in configuration from the mobile station 102 are mainly described. To do.

 FIG. 9 is a block diagram showing the configuration of the base station side (base station 103, base station control device 104). As shown in the figure, the base station side includes an upper layer block 1201, a radio link control unit 1202, a media access control unit 1203, a physical layer control unit 1204, an antenna 1205, and a radio resource control unit 1206. The media access control unit 1203 includes a MAC-e unit 1220 corresponding to the implementation of the present invention and a MAC-d unit 1221 corresponding to the conventional standard.

 The mobile station 102 is distributed in the base station controller 104 and the base station 103 on the base station side where all blocks are in the mobile station. The distribution method depends on the device implementation. In Embodiment 1, upper layer block 1201, radio link controller 1202, and radio resource controller 1206 are arranged in base station controller 104.

 Further, the media access control unit 1203 is distributed in both the base station control device 104 and the base station 103. The physical layer control unit 1204 is arranged in the base station 103. The configurations and operations of the upper layer block 1201, the radio link control unit 1202, and the radio resource control unit 1206 are the same as those of the mobile station 102, and thus description thereof is omitted.

 FIG. 10 is a block diagram showing the configuration of the media access control unit 1203 on the base station side.

As shown in the figure, the media access control unit 1203 includes a MAC-e unit 1220, a reception-system MAC-d unit 1221-1, a transmission-system MAC-d unit 1221-2, a reception buffer 1601a, and an E-DCH buffer 1601b. A transmission buffer 1604 and a MAC control unit 1607 are provided. Next, the input / output relationship of each unit of the media access control unit 1203 will be outlined. Receiving system MAC—d section 1221-1, transmitting system MAC—d section 1221-2, receiving buffer 1601a, E—DCH buffer 1601b, transmitting buffer 1604, MAC control section 1607 operations are as follows: Since the control unit 203 is the same as the configuration in which the uplink block and the downlink link block are replaced and the MAC-e unit 605 is omitted, the description is omitted.

 The MAC-e unit 1220 receives the reception determination result ACKZNACK from the physical layer control unit 1204 and the report information TRbuffer notified from the mobile station 102. In addition, the MAC-e unit 1220 performs radio resource control, that is, scheduling, for the uplink E-DCH. Also, the downlink E-DPCCH is output to the physical layer control unit 1204. Details of each E-DPCCH will be described later.

FIG. 11 is a block diagram showing a configuration of the physical layer control unit 1204 on the base station side. As shown in the figure, the physical layer control unit 1204 includes a reception unit 1701, a demodulation unit 1702, a separation unit 1703, a multiplexing unit 1704, a modulation unit 1705, a transmission unit 1706, a PHY control unit 1707, and an antenna 1205. .

 Next, an input / output relationship of each unit of the physical layer control unit 1204 will be outlined.

 Since the operations of the antenna 1205, the receiving unit 1701, the demodulating unit 1702, the modulating unit 1705, and the transmitting unit 1706 are the same as those of the mobile station 102, description thereof is omitted.

 Separating section 1703 inputs demodulated data from demodulating section 1702 using uplink physical channels DPDCH and DPCCH. Also, the received DCH data and received E-DCH data are separated from the uplink DPDCH data using a known technique. Also, E-DCH data reception judgment result ACKZNACK is output to Mac-e unit 1220 of MAC unit 1203. Also, the separated report information TRbuffer is output to the MAC-e section 1220. Also, the separated uplink DPCCH data is output to the PHY control unit 1707.

 Multiplexer 1704 uses downlink DCH data from transmission buffer 1604, downlink E-DPCCH data from MAC-e unit 1220, and downlink DPCCH data from PHY control unit 1707 using known techniques. It is multiplexed using and output to the modulation unit 1705.

[0036] Next, the operation during uplink will be described. FIG. 12 is a diagram showing a packet transmission flow from the mobile station to the base station according to the first embodiment.

 It should be noted that here, a description of the DPCCH 106, which is a physical control channel of the conventional standard, is unnecessary and is omitted. Also, the flow related to DCH data transmission transmitted from the base station 103 is not a matter specific to the present invention, and will not be described.

[0037] First, in step ST200, mobile station 102 measures the amount of untransmitted data (Measurement) as one of the status information of mobile station 102 (step ST200).

 The data to be measured includes the data amount of each buffer of the radio link control unit 202, the data amount of each buffer of the media access control unit 203, the data amount by priority of untransmitted data, and the retransmission control function ARQ (Automatic Repeat If there is a reQuest), there is a data amount by priority regarding retransmission control. In Embodiment 1, the amount of data in transmission buffers 502a and 502b of radio link control section 202 is used as report information (TRbuffer) notified from mobile station 102 to base station 103 for scheduling.

 The status information of the mobile station 102 includes other transmission power from the mobile station 102 (total power V or specific channel power), its statistical value, transmission power margin, or its statistics. Value, priority of untransmitted data or its statistical value, transmission speed or its statistical value, etc. These may be measured simultaneously with the above-described measurement of the amount of untransmitted data, or may be collected separately.

[0038] The operation of mobile station 102 in step ST200 will be described in detail.

 First, when a communication service occurs in the upper layer block 201, the data of the service is stored in the transmission buffer 502a of the radio link control unit 202 as transmission data (TXdata). Thereafter, the data stored in the transmission buffer 502a is output to the transmission system MAC-d unit 603 of the media access control unit 203 as transmission data of the logical channel DTCH. Various known transmission control information (TXcontrol) relating to the communication service is stored in the transmission notifier 502b. The transmission control information (TXcontrol) stored in the transmission buffer 502b is output from the transmission buffer 502b to the transmission system MAC-d unit 603 of the media access control unit 203 as control logical channel DCCH data.

[0039] Also, in each of the transmission buffers 502a and 502b of the radio link control unit 202, each logical channel is set. A serial number TSN (Transmission Sequential Number) is added for each transmission unit amount of data. As a result, it is possible to determine whether a part of data has been lost due to a communication error, or whether data has arrived at the base station 103 in order. Further, the base station 103 can reconstruct the data string based on this number. It should be noted that, depending on the standard, it is specified in the standard whether the TSN attachment is to be implemented in the transmission system MAC-d part 603 of the media access control unit 203. May be implemented.

 Further, the data amount information (Data info) in the buffer is output from the transmission buffers 502 a and 502 b to the S buffer monitoring unit 504. This report may be performed periodically, at the time when the amount of data changes, or at other timings or conditions. The condition setting is set in the mobile station 102 by the radio resource control unit 206 in advance based on the exchange with the base station before the start of communication.

 In the noffer monitoring unit 504, the input data amount information (Data info) is classified into the transport channel DCH and the E-DCH. Each classified data amount information (Data info) is output as DCH data information (DCH LOGbuffer) and E-DCH data information (EDCH LOGbuffer) for each logical channel.

 [0040] Data information (DCH LOGbuffer and EDCH LOGbuffer) output from the noffer monitoring unit 504 is output to the traffic amount measuring unit 608 in the media access control unit 203 and the data amount information unit 606 in the MAC-e unit 605, respectively. Is done. Note that transmission / reception of information among the wireless link control unit 202, the media access control unit 203, the physical layer control unit 204, and the like as described above may be called a primitive.

[0041] Based on the DCH LOGbuffer and EDCH LOGbuffer, the communication volume measuring unit 608 adds the total data amount of logical channels assigned to DCH, which is a conventional channel, and E, which is a channel related to the present invention. — The total amount of data of logical channels allocated to DCH is obtained. This is an extension of the traffic volume measurement reporting function (Traffic volume measurement) notified to the base station controller 104 defined in the conventional standard. E—Measurement cycle, measurement method, and reporting conditions related to DCH data information are defined in TS25.331, and communication is started by base station controller 104. Etc. Note that the measurement cycle, measurement method, reporting conditions, etc. may be set differently for each logical channel or each transport channel.

 [0042] Next, the calculated total amount of data is sent to the MAC control unit 607 according to the report condition set for the traffic report (Traffic Report) to be notified to the base station controller 104. Is output.

 The MAC control unit 607 transfers a traffic report to the radio resource control unit 206. The radio resource control unit 206 transmits the transferred traffic report (Traffic Report) via the radio link control unit 202, the media access control unit 203, the physical layer control unit 204, the antenna 205, and the base station 103 of the mobile station 102. To the base station controller 104.

 [0043] Also, the E-DCH data information (EDCH LOGbuffer) input to the data amount information unit 606 is converted into data format of report information (TRbuffer) for notification to the base station 103 using a known technique. And output to the control information multiplexing unit 610. The report information (TRbuffer) is the same as the traffic volume measurement function for reporting to the base station controller 104 (Traffic volume measurement), the total data amount, the data amount by buffer, and the channel basis. Data amount, data amount by priority, and the like. The power to make any data format is determined by the standard document TS25.331. In Embodiment 1, the amount of data for each logical channel assigned to E-DCH is used.

 Next, in step ST 201, an uplink radio resource allocation request is transmitted from mobile station 102 to base station 103.

 The operation of the mobile station 102 in ST201 will be described.

First, report information (TRb uffer) output from the data amount information unit 606 to the control information multiplexing unit 610 is multiplexed with uplink MAC-d flow data (MAC-d PDU) using a well-known technique, and the MAC- The data is output to the e unit 605, and then output from the MAC-e unit 605 to the E-DCH buffer 604b as E-DCH data (MAC-e PDU). Multiplexing in the control information multiplexing unit 610 is performed by adding various information of the MAC-e unit 605 as a header. Note that there may be actually no MAC-d flow data to be transmitted. Next, the multiplexed E-DCH data is transferred from the E-DCH buffer 604b to the multiplexing unit 70. Output to 4. The E-DCH data input to multiplexing section 704 is multiplexed using a known technique and output to modulation section 705 as DPDCH data.

[0045] Uplink DPCCH data and DPCCH (E—DCH) data are respectively output from PHY control section 707, multiplexed in multiplexing section 704 with DPDCH and DPCCH (E—DCH), and modulated section 705 Is output.

 When there is no MAC-e SDU data, DPCCH (E-DCH) data is not output from the PHY control unit 707.

 Next, the DPDCH data, DPCCH data, and DPCCH (E-DCH) data input to the modulation unit 705 are modulated by a known technique. Each modulated data is processed by the transmission unit 706 and then wirelessly transmitted to the base station 103 via the antenna 205.

 In addition to the report information (TRbuffer), DPDCH (E—DCH) 110 includes transmission power margin information (Po wer margin) shown in Non-Patent Document 1 in relation to V and the transmission request channel USICCH. Other mobile station information such as) can also be included. The type of information to be transmitted simultaneously with the report information (TRbuffer) differs depending on the scheduler configuration and radio resource management method implemented in the MAC—e unit 1220 of the base station 103, but the details are in TS25.331. (RRC signaling).

 As a representation format when multiplexing the report information (TR buffer) included in E—DCH data (MAC—e PDU) to DPDCH (E—DCH) 110 in mobile station 102! Data volume (number of bits), 2. Index indicating combination of data volume, 3. Buffer occupancy (%), 4. Index indicating combination of buffer occupancy, 5. Statistics of data volume or buffer occupancy, 6 Index of statistics, 7. Increase / decrease in data volume, 8. Index indicating increase / decrease in data volume, 9. Threshold of data volume to report, 10. Threshold index, 11. Amount of increase / decrease, 12. Index of increase / decrease, 13. Requested transmission rate converted based on data volume, 14. Required transmission rate index, 15. Expected transmission rate converted based on data volume, etc. . The multiplexing process is specified in the standard document TS25.212, and the correspondence between the data amount information and the index is specified in the standard document TS25.214.

Next, the reception operation of DPDCH (E—DCH) 110 in base station 103 will be described. Uplink DPDCH (E-DCH) 110 data received via the antenna 1205 is processed by a receiving unit 1701, a demodulating unit 1702, and a demultiplexing unit 1703 by a known technique. From the separation unit 1703, the upper data (MAC-e SDU) separated from the DPDCH (E-DCH) is output as E-DCH data to the E-DCH buffer 1601b. Also, report information (TRbuffer) is separated from demultiplexing section 1703 and input to MAC-e section 1220.

 Next, in step ST202, the MAC-e unit 1220 of the base station 103 performs uplink radio resource allocation (scheduling) for the mobile station 102.

 The scheduling operation of base station 103 in step ST202 will be described.

 The MAC-e unit 1220 measures and predicts an increase in power (Noise Rise) caused by packet transmission from the mobile station 102, and schedules uplink scheduling so that the sum is within the received power margin value of the base station 103. Do. Information used for scheduling includes: 1. Communication service type and QoS of mobile station 102, 2. Communication speed setting, 3. Communication environment, 4. Base station received data amount, 5. Mobile station 102 data amount information 6. There is uplink quality (path loss) etc., and what is used depends on the implementation method of the scheduler.

 The scheduling methods are as follows: 1. A method that gives priority to mobile station 102 with a large amount of untransmitted packets; 2. A method that gives priority to mobile station 102 with a transmission power margin; 3. A method that assigns transmission requests in the order received; 4. A method of allocating to mobile station 102 in a predetermined order (so-called Round Robin) 5. A method of preferentially allocating to mobile station 102 with good propagation environment with little propagation loss or interference (so-called Max C / I) ), 6. An intermediate method between Round R obin and Max CZl (so-called Proportional Fairness), 7. A method of giving priority to the mobile station 102 having high priority data, 8. A communication partner (from the mobile station 102) For example, various methods such as a method of assigning a delay to a computer (connected to another communication network 105) so as to reduce the delay, and a combination of various methods in 9.11-8 can be applied. In designing the base station apparatus and communication system, for example, it is designed and selected so that the throughput of the entire cell is the highest.

In addition, the scheduling target channels are: 1. E--DCH only The base station controller 104 is controlled as before, 2. Control is performed including the DCH under the restriction of control in the conventional base station controller 104, 3. DCH in cooperation with the base station controller 104 4. Various methods such as targeting logical channels allocated to E-DCH can be applied. In designing base station equipment and communication systems, for example, the throughput of the entire cell Is designed and selected so as to be the highest. The scheduling results can be expressed in the following formats: 1. Maximum transmission rate, 2. Total power or channel power, 3. Power offset, 4. DPDCH signal amplitude coefficient (gain factor), 5. Timing or duration, 6 Power margin, 7. Various types of indexes, 8. Combinations of various types, 9. Various types of methods such as increase / decrease of various types are applicable, considering communication overhead due to required number of bits, etc. To do. The details are defined in the standard TS25.214 etc. In the first embodiment, it is assumed that the maximum allowable transmission rate is used as the format of the scheduling result and is notified to mobile station 102.

[0048] Next, in Step ST203, scheduling result information (Scheinfo) is notified from the base station 103 to the mobile station 102 via the downlink E-DPCCH 111.

 The transmission operation of base station 103 in step ST203 will be described.

 First, the maximum allowable transmission rate information that is scheduling result information is output from the MAC-e unit 1220 to the multiplexing unit 1704 as E-DPCCH111 data. In multiplexing section 1704, E-DPCCH, DCH, and DPCCH are multiplexed by a known technique, and further wirelessly transmitted via modulation section 1705, transmission section 1706, and antenna 1205.

 At this time, DCH (or DPDCH) may not actually have DCH data to be transmitted. For example, when there is no service data (TXdata) to be transmitted from the base station 103 when the communication service is started, only scheduling result notification is performed.

 Next, the reception operation of mobile station 102 in step ST203 will be described. Downlink E—DPCCH 111 data received by antenna 205 is processed by receiving section 701, demodulating section 702, and demultiplexing section 703, and input to MAC-e section 605 as scheduling result information (E—DPCCH data). .

[0049] Next, in step ST204, DPDCH (E-DCH) ZDPCCH (E-DCH) 110 is used based on the scheduling result information notified from base station 103 by mobile station 102. Packet data is transmitted.

 The transmission operation of mobile station 102 in step ST204 will be described.

 The MAC—e unit 605 determines the amount of transmission data (or transmission rate) that can be transmitted within the range of the maximum allowable transmission rate that the base station 103 is also notified of, and stores untransmitted data in the E-DCH buffer 604b E—Output as DCH data. At this time, the MAC-e unit 605 controls the output timing, that is, the transmission timing from the mobile station 102. Control of transmission timing is as follows: 1. Based on scheduling of base station 103 (Time & Rate control), 2. Based on autonomous transmission of mobile station 102 (Autonomous control), 3. Based on probability (Pers istence control), etc. There are various methods, and the operation differs depending on the scheduling method in the MAC-e part 605, but the operation is specified in the TS25.214 standard.

 [0050] The E-DCH data stored in the E-DCH buffer 604b is output to the multiplexing unit 704 and multiplexed with other channels. Multiplexer 704 determines a modulation method and the like based on the amount of input E-DCH data, and outputs the result to modulator 705 as DPCCH (E-DCH) data. Note that the determination of the modulation method differs depending on the mounting method of the mobile station 102 that may be performed by the MAC-e unit 605. When the MAC-e unit 605 performs the scheduling information, it is sent as primitives (not shown) from the media access control unit 203 to the physical layer control unit 204. Each channel data multiplexed by the multiplexing unit 704 is sent to the modulation unit. Processing by a known technique is performed in 705 and a transmission unit 706, and wirelessly transmitted to the base station 103 through the antenna 205 as DPDCH (E-DCH) 110 as wireless transmission data (Data). The transmitted radio data (Data) includes report information (TRbuffer).

 In Embodiment 1, the reporting information (TRbuffer) is transmitted to the base station in step ST201. When packet data is transmitted in step ST204, the reporting information (TRbuffer) is also transmitted at the same time. Good.

[0051] The reception operation of base station 103 in step ST204 will be described.

The radio transmission data (Data) received via the antenna 1205 is processed by the receiving unit 1701, the demodulating unit 1702, and the separating unit 1703 by a known technique, and the data of each channel is demodulated. Outputs separately. In addition, in the separation unit 1703, reception determination of E-DCH data is performed. If the reception determination result is OK, an ACK signal is sent to the MAC-e unit 1220, and the received upper layer data is output to the E-DCH buffer 1601b as E-DCH data. The E-DCH data input to the E-DCH buffer 1601b is sent to the upper layer block 1201 through the processing of each unit of the radio link control unit 1202. On the other hand, when the reception determination result is NG, the NACK signal is sent to the MAC-e unit 1220 and the received data is discarded. If the reception determination result is NG, it is also possible to synthesize data after waiting for retransmission from the mobile station 102. In this case, the received data is temporarily held.

 Next, in step ST 205, reception decision result (ACKZ NACK) power is notified from base station 103 to mobile station 102 to mobile station 102 via downlink E-DPCCH 111.

 The transmission operation of base station 103 in step ST205 will be described.

 The reception determination result (ACKZNACK) is output from the MAC-e unit 1220 to the multiplexing unit 1704 as E-D PCCH data. Thereafter, it is processed by a known technique to the multiplexing unit 1704, the modulation unit 1705, and the transmission unit 1706, and wirelessly transmitted as downlink E-DPCCH111 data. The processing after multiplexing is performed in the same manner as in step ST203.

[0053] Next, the reception operation of mobile station 102 in step ST205 will be described.

 The E-DPCCH 111 received by the antenna 205 is processed by the receiving unit 701, the demodulating unit 702, and the separating unit 703 by a known technique, and is input to the MAC-e unit 605 as E-DPCCH data.

 The MAC-e unit 605 prays for the reception determination result (ACKZNACK) in the E-DPCCH data, and determines whether to retransmit the packet data or transmit new data (retransmission control). The MAC-e unit 605 outputs the E-DCH data to the E-DCH buffer 604b.

 E-DCH buffer 604b transmits E-DCH data as radio transmission data (Data) to base station 103 via multiplexing section 704, modulation section 705, transmission section 706, and antenna 205. That is, the process proceeds to step ST204. The operation of MAC-e unit 605 during retransmission control will be described later.

[0054] As described above, the base station 103 reports information transmitted directly from the mobile station 102 to the base station 103. Based on the notification information (TRbuffer), scheduling for packet data transmission in the uplink is performed.

 In the first embodiment, out of a series of steps (step ST200-step ST205) necessary for transmitting packet data from mobile station 102, a scheduling cycle comprising step ST201 and step ST203, and step For packet data transmission consisting of ST204 and ST ST205, the cycle and power are performed continuously, but the two cycles may be performed separately.

 Also, the data amount measurement step ST200 in the mobile station 102 may be performed in a cycle different from the series of cycles. In this case, the report information (TRbuffer) at the time before the start of step ST201 may be used during scheduling.

 Next, retransmission control processing in MAC-e section 605 of mobile station 102 will be described. FIG. 13 is a diagram showing a configuration related to retransmission control of the MAC-e unit 605. As shown in FIG. As shown in the figure, the MAC-e unit 605 includes a retransmission control unit 650, and the retransmission control unit 650 includes a selector 651 and retransmission buffers 652 to 652.

 1 M

 Various known techniques can be applied as a retransmission control method in the mobile station 102. In the first embodiment, the channel parallel type top & wait method (hereinafter referred to as M-channel Stop & Wait) disclosed in the release 5 of the standard. Retransmission control by) shall be performed. In this method, M independent retransmission cycles are performed in a time multiplexed manner.

 The MAC-d flow data (MAC-e SDU) input to the MAC-e part 605 is retransmitted based on the quality requirement (QoS) for the data service and the priority of the logical channel. Selector 651 [Through resending sofa 652, 652,.

 1 Stored in 2M. The selector 651 adds an index (QueuelD: 1 M) to the head of the input MAC-d flow data (MAC-e SDU) to distinguish each retransmission buffer.

 MAC—Retransmission buffers 652, 652,

 1 2

, 652 selects one buffer and the stored data is multiplexed with control information It is output to part 610.

 The data input to the control information multiplexing unit 610 is multiplexed with the report information (TRbuffer) in the control information multiplexing unit 610 and output to the E-DCH buffer 604b as E-DCH data (MAC-e PDU). The subsequent processing is the same as step ST204 in FIG. 12. FIG. 14 is a diagram showing the format of the MAC-e PDU output from MAC-e section 605 according to Embodiment 1. In the figure, (a) shows the MAC-e PDU format, and (b), (c), and (d) show examples of VF values and their definitions when using this format.

 QueuelD is the index of the retransmission buffer 652-652. D one D reports

 1 M 1 N

Information (TRbuffer) area. N is the number of logical channels, and D

 1 N

Report information by channel. As the value of N, the number M of retransmission buffers may be used, or may be assigned using a part of the M pieces of information. When some information is used, when data is actually transmitted from the transmission buffer for each logical channel, the data amount information of the buffer may be included. TSN (Transmission Sequence Number) is a serial number that is assigned to correctly rearrange data from the lower layer to the upper layer and output when receiving at the base station 103.

SID (Size ID) One SID transmits multiple MAC-e SDUs of the same number of bits at a time.

 1k

Is an index indicating the length of the MAC-e SDU. N—N is the same SI

 1k

 D MAC—a number that indicates how many eSDUs are consecutive. F—F goes to MAC—e

 1 k-l

It is a flag indicating that a header (MAC—e header) follows. Padding is a bit added to match the length of the MAC-e PDU to a multiple of 8 bits, for example. opt

Indicates an optional specification. In MAC-e, the entire MAC-e SDU is M

AC—called e payload.

 As shown in the figure, the report information area D—D is the MCA—e PDU header area (MAC—

 1 N

e header). Note that the definition of MAC-e PDU format and parameters are limited to those shown in the figure for the order of each area in the MAC-e header that will be specified in the TS25.321 standard. Wow! As a method of using the VF value, for example, the following can be considered. The example shown in (b) in the figure shows the case where VF is used as the identifier of the release version of the standard. According to this example, since it is possible to cope with future format changes, the base station 103 corresponding only to the release in which E-DCH is newly added and the base station 103 corresponding to the later release are connected to the communication system. Even if they co-exist in the network, it is possible to ensure knock word compatibility (Backward compatibility) and to cope with future expansion of the standard.

 In the example shown in (c), VF is used as an identifier for the presence / absence of multiplexing of report information (TRbuffer). According to this example, there is no significant change in the data amount of the transmission buffer, and when new report information (TRbuffer) is not transmitted to the base station 103, the length of the MAC-e PDU is variable and transmitted. The number of bits can be shortened. This makes it possible to reduce the communication overhead that occurs in the communication cycle for scheduling.

Thus, communication interference in the uplink can be reduced.

 In the example shown in (d), the VF value is expressed as a number of bits and used as an identifier for the contents of the report information (TRbuffer). For example, in Embodiment 1, since the data amount information for each logical channel assigned to E—DCH is transmitted to the base station 103, VF = 00 is used. According to this example, a plurality of types of contents of the report information (TRbuffer) can be set, so that the most effective report information can be used for the communication system used by the communication company or base station manufacturer.

It is also possible to use an identifier combining (b), ( _c ) and (d) above by dividing the bit representing VF.

FIG. 15 is a diagram showing another example of the format of the MAC-e PDU.

The difference from the format shown in Fig. 14 is that parameter P is added after the report information (TRbuffer). In Embodiment 1, the parameter P represents the total mobile station transmission power value (absolute value)! / The DPCCH 106 power value (absolute value) may be used instead of the total transmission power value (absolute value). By using this format, the base station 103 can measure the uplink communication environment (for example, propagation loss: Path Loss). Therefore, more efficient scheduling is possible by using this information for scheduling. It becomes ability.

 Note that the value of the parameter P may represent another state measurement item of the mobile station 102 as described in relation to step ST200 in FIG. When there is a plurality of pieces of mobile station information during the scheduling operation of the base station 103, more effective scheduling is possible. Depending on the report timing, the format with parameter P and the format with no parameter P may be used separately. In addition, when there is a case where power information is notified to the base station 103 which is formatted without parameter P and cannot be used, the report information area D may be used instead of the data amount information. Good. The state information about the power is measured by the physical layer control unit 204, notified to the MAC-e unit 605 by control information (PHYcont, MACcont) or primitive, and sent to the base station 103 through the processing of the physical layer control unit 204. Sent.

 14 and 15, the order of report information area DD and power information area P

 1 N

And the position is not limited to the example of the figure. However, if they are adjacent, the MAC-e unit 605 can process all at once, thereby simplifying the configuration of the processing apparatus.

 14 and 15, if error correction processing is performed on the entire MAC-e header or a part thereof (for example, the report information area DD and the power information area P), transmission is possible.

 1 N

Communication errors can be reduced.

 In addition, the mobile station identification information (UE ID) field is provided in the MAC-e header, or the mobile station identification information (UE ID) is incorporated into the entire MAC-e header or a part thereof. Accordingly, since the mobile station 102 can be identified by the base station 103, transmission from the mobile station 102 can be performed on a common link, and radio resources can be used more efficiently.

 If the length of the MAC-e PDU is made variable, there is no need to add additional bits (Padding) at the end. The implementation of the media access control unit 203 uses DSP, gate array, etc. to prioritize high-speed processing, so the processing amount of the mobile station 102 is reduced by shortening the MAC-e PDU length. it can.

Also, the length of the MAC-e PDU can be made variable, and the length of the report information DD may be shortened when the number of logical channels to be reported as report information is small. In that case, Logical channel identification number in each report information area D—D (CZT in the standard)

 1 N

 It is described. ) Can be added.

[0060] As described above, according to Embodiment 1, untransmitted data information of mobile station 102 is multiplexed as report information (TRbuffer) in the MAC-e header of the MAC-e PDU and transmitted to base station 103. Therefore, high-speed notification of untransmitted data amount information from the mobile station 102 to the base station 103 becomes possible. As a result, uplink radio resource control (scheduling) in the base station 103 becomes possible, and high-speed control is possible compared to radio resource control by the base station control apparatus 104, so that the communication system is more efficient. This has the effect of improving the throughput of the entire cell.

 Further, since the untransmitted data information as the status information of the mobile station 102 is transmitted directly to the base station 103 without going through the base station controller 104, high-speed and high-frequency transmission is possible, and the uplink in the base station 103 is possible. The link radio resource control is more efficient and the throughput of the entire cell is improved.

 Further, there is no need to transfer data amount information from the base station controller 104 to the base station 103, and there is an effect that traffic from the base station controller 104 to the base station 103 can be reduced. In addition, since report information is multiplexed with higher-order data (MAC-e SDU) and transmitted via DPDCH, a dedicated channel (channel separation code) is used to notify mobile station 102 status information to base station 103. ) Is not necessary. When multiple channels are transmitted in parallel using many spreading codes, the peak-to-average ratio (PAR) in radio frequency signals can be reduced. For this reason, it is possible to relax the linearity in the transmitter characteristics of the mobile station 102 and to transmit for a long time.

 In addition, since the base station 103 is notified of the data amount information for each logical channel, the base station 103 that holds the logical channel information of all mobile stations considers the priority of transmission between mobile stations. It becomes possible to control. This has the effect of making uplink scheduling more efficient.

[0061] In Embodiment 1, data amount report (Traffic Report) generation to base station control apparatus 104 and report information (TRbuffer) generation to base station 103 are performed in separate processing blocks. Force You can do it in one block. For example, the traditional Traffic volume measur An extension of the standard specification of the ement block can be considered.

 In addition, DCH related information such as DCH data amount information (DCH LOGbuffer), DCH transmission rate information, logical channel priority information of DCH data, etc. is also transmitted as report information (TRbuffer). You may do it. In this case, since the base station 103 can also grasp the amount of DCH transmission data, the base station 103 can take into account the amount of interference due to the DCH when scheduling the E-DCH in the base station 103. If it is combined with the control of both low-speed channels (DCH, E-DCH) in the device 104, more efficient communication system control is possible. This is especially effective when DCH transmission and E-DCH transmission are controlled independently and the transmission priority is different.

[0062] Embodiment 2.

 The configuration on the mobile station and base station side according to the second embodiment is the same as that of the first embodiment. FIG. 16 is a diagram showing a MAC-e PDU format according to the second embodiment. In the figure, (a) shows the MAC-e PDU format, and (b) and (c) show examples of parameter DZC definitions. Also in Embodiment 2, the report information (TRbuffer) is multiplexed on the MAC-e header. DZC is a flag indicating whether only data is transmitted or whether control information is also transmitted. Other parameters are the same as in the first embodiment. MAC-e payloa d may not be transmitted. In that case, zero is set as the value of SID and N, and only various control information for base station scheduling including report information (TRbuffer) is transmitted as MAC-e PDU.

[0063] In the example shown in (b), the meter DZC is assigned to the base station 103 such as the report information area DD.

 1 N

The case where it is used to indicate the presence or absence of information for radio resource control in is shown. DZC = 0 indicates that there is control information, and DZC = 1 indicates that there is no control information. By defining the DZC flag at the beginning of the MAC-e header, the base station 103 can recognize the presence or absence of control information such as V and report information (TRbuffer) at the start of reception. Since packet data is generated in bursts and the amount of data received by the base station 103 can be grasped, the transmission frequency can be reduced by transmitting report information only when a burst occurs. As a result, the occurrence of uplink interference can be suppressed, and resources can be routed to other mobile stations 102. [0064] In the example shown in (c), DZC = 0 represents the presence of upper layer data (MAC—e SDU), and DZC = 1 represents the absence. In this case, control information such as report information (TRbuffer) is transmitted by default when all MAC-e PDUs are transmitted. Therefore, when the communication overhead in the report information area (D—D) is small, the mobile station 102

1 N

 The state information can be notified to the base station 103, and the scheduling power in the base station 103 can be effectively achieved.

 As described above, according to Embodiment 2, untransmitted data information of mobile station 102 is multiplexed as report information (TRbuffer) in the MAC-e header of the MAC-e PDU and transmitted to base station 103. Therefore, high-speed notification of untransmitted data amount information from the mobile station 102 to the base station 103 becomes possible. As a result, uplink radio resource control (scheduling) in the base station 103 becomes possible, and high-speed control is possible compared to radio resource control by the base station control apparatus 104, so that the communication system is more efficient. This has the effect of improving the throughput of the entire cell.

 In addition, since untransmitted data information is transmitted directly to the base station 103 without going through the base station controller 104, high-speed and high-frequency transmission is possible, and uplink radio resource control in the base station 103 is further improved. The efficiency is improved and the overall throughput of the cell is improved.

 Also, by setting the D / C parameter in the MAC-e header of the MAC-e PDU, the MAc-e PDU format length can be shortened and the communication overhead can be shortened when there is no upper data. effective.

[0066] In the second embodiment, the report information area (DD) is on the MAC-e header.

 1 N

 The Since the base station 103 can recognize the presence of control information such as report information (TR buffer) at the start of reception by the DZC parameter, the report information area (D 1 D) is placed after the MAC-e SDU on the format. It is also possible to set Padding in this case.

1 N

 Not sure.

[0067] Further, similarly to Embodiment 1, DCH related information such as data amount information (DCH LOGbuffer) from radio link control section 202 may also be transmitted as report information (TRbuffer). In this case, the base station 103 also transmits the amount of DCH transmission data, etc. Since the situation can be grasped, the amount of interference due to DCH can be taken into account when scheduling E-DCH in base station 103, and both low-speed channels (DCH, E-DCH) in base station controller 104 When combined with this control, more efficient communication system control becomes possible.

Embodiment 3.

 The configuration on the mobile station and base station side according to the third embodiment is the same as that of the first embodiment. FIG. 17 is a diagram showing a MAC-e PDU format according to the third embodiment. Even in Embodiment 3, the report information (TRbuffer) is multiplexed on the MAC-e header.

 In the figure, EF is a flag indicating that a set of parameters from QueuelD to N before EF is repeated after EF. Other parameters are the same as in the first and second embodiments.

 In Embodiment 2, together with the amount of data for each logical channel, QueuelD—

 1 M Notifies the base station 103 of the data amount indicated for each retransmission buffer.

 As shown in the figure, for each retransmission buffer, the data amount information and the MAC-e SDU data information (SID, N, F) are paired and multiplexed in the header to multiplex the data amount information and the MAC-e. There is no need to provide a separate buffer ID for SDU data.

 In addition, by placing multiple buffer IDs, retransmission buffers with different priorities can be multiplexed onto the same MAC e PDU and transmitted at the same time, allowing efficient transmission when the amount of data in each buffer is small. It becomes possible to do.

[0069] As described above, according to Embodiment 3, untransmitted data information of mobile station 102 is multiplexed as report information (TRbuffer) in the MAC-e header of the MAC-e PDU and transmitted to base station 103. Therefore, high-speed notification of untransmitted data amount information from the mobile station 102 to the base station 103 becomes possible. As a result, uplink radio resource control (scheduling) in the base station 103 becomes possible, and high-speed control is possible compared to radio resource control by the base station control apparatus 104, so that the communication system is more efficient. This has the effect of improving the throughput of the entire cell.

In addition, since the untransmitted data information is directly transmitted to the base station 103 without going through the base station controller 104, high-speed and high-frequency transmission is possible. The line resource control is more efficient and the overall cell throughput is improved.

 [0070] Since report information for each retransmission buffer is transmitted from mobile station 102, scheduling considering the priority of untransmitted data of each mobile station 102 becomes possible in base station 103. Efficient radio resource management becomes possible. Also, since the report information for logical channels with the same priority is stored in the same retransmission buffer, the number of bits required for the report information can be reduced by using retransmission-by-buffer data amount information, and uplink interference can be achieved. The amount can be reduced.

[0071] In the third embodiment, report information for each retransmission buffer for E-DCH is transmitted. However, the data amount information (D CH LOGbuffer) from the radio link control unit 202 may also be transmitted as report information. In this case, the format as in Embodiment 1 or 2 may be set as a part of the MAC-e PDU. This allows the base station 103 to know the amount of DCH transmission data even if it is! /, So when the E-DCH scheduling at the base station 103, the amount of interference due to DCH may be taken into account. In addition, when combined with the control of both low-speed channels (DCH and E-DCH) in the base station controller 104, more efficient communication system control is possible.

Embodiment 4.

 The configuration on the mobile station and base station side according to the fourth embodiment is the same as that of the first embodiment. FIG. 18 is a diagram showing a MAC-e PDU format according to the fourth embodiment. In the figure, (a) shows the MAC-e PDU format, and (b) shows an example of the definition of the parameter PDU type. The format of the MAC-e PDU according to Embodiment 4 is a dedicated format for MAC-e communication for transmitting control information such as report information (TRbuffer). This format can also be used for notification of control information from the base station 103 to the mobile station 102, and can be used not only for reporting data amount information but also for general purposes.

 The PDU type is a parameter for distinguishing the format (type) of the MAC-e PDU. Other parameters are the same as in the first embodiment. As shown in FIG. 16 in the second embodiment, the DZC parameter is set to a value indicating control information.

The MAC-e PDU format according to Embodiment 4 is the RLC in the conventional standard. It is the same format as STATUS PDU, which is one of the PDU formats.

[0073] As shown in Fig. (B), in Embodiment 4, 3 bits are used in the PDU type area.

 PDU type = 000 represents a case where the MAC-e PDU includes status information (STATUS) of the mobile station 102 that is directly notified from the mobile station 102 to the base station 103 in addition to the report information (TRbuffer). For example, when data is transmitted to an external network from an external device (TE: Terminal Equipment) connected to the mobile station 102, the external device is used to perform transmission control (so-called flow control) from the mobile station 102. It is conceivable that the mobile station 102 collects (TE) status information and notifies the base station 103 of it.

 PDU type = 001 is used when the sender's status information is set to the initial status at the receiver. In this case, the format can be used for notification from the base station 103 to the mobile station 102 as well as from the mobile station 102 to the base station 103. The notification method from the base station 103 to the mobile station 102 is obtained by switching the operations of the base station 103 and the mobile station 102, and the description thereof is omitted.

 PDU type = 010 is used when notifying that the reset is completed (RES ET ACK) in response to the reset request notification. Also in this case, the format can be used for notification from the base station 103 to the mobile station 102 in addition to the mobile station 102 to the base station 103.

 PDU type = 011 is used when transmitting the status information (MAC—e STATUS) of the mobile station 102. In this case, the mobile station 102 notifies the base station 103. Other PDU type values, for example, indicate that they are not used in releases where E-DCH is introduced !, (Reserve).

 The MAC-e PDU according to the fourth embodiment is transmitted with priority over the MAC-e PDU according to the first to third embodiments.

As described above, according to Embodiment 4, untransmitted data information of mobile station 102 is multiplexed as report information (TRbuffer) in the MAC-e header of the MAC-e PDU and transmitted to base station 103. Therefore, high-speed notification of untransmitted data amount information from the mobile station 102 to the base station 103 becomes possible. This enables uplink radio resource control (scheduling) in the base station 103, and radio resource control by the base station controller 104. As a result, the communication system is more efficient and the throughput of the entire cell is improved.

 In addition, since untransmitted data information is transmitted directly to the base station 103 without going through the base station controller 104, high-speed and high-frequency transmission is possible, and uplink radio resource control in the base station 103 is further improved. The efficiency is improved and the overall throughput of the cell is improved.

 In addition, by using the PDU type parameter, it is possible to notify various status information and control information of the mobile station 102, which is just the report information (TRbuffer) of the mobile station 102, so that more efficient uplink can be performed. There is an effect that control becomes possible.

[0075] Further, since the MAC-e PDU format according to Embodiment 4 is the same format as the STATUS PDU, which is one of the RLC PDU formats in the conventional standard, the radio link control unit 202 and the media access control There is no need to specify the format of part 203 separately. For this reason, since the PDU generation processing circuit and the like can be shared, there is an effect that the configuration of the mobile station apparatus becomes simple.

 Further, according to the fourth embodiment, information (STATUS, RESET, RESET ACK) used in radio link control section 202 can be notified to base station 103 in addition to base station control apparatus 104. As a result, information used by the base station control device 104 can be used for radio resource control at the base station 103, so that more effective scheduling can be achieved.

 In the fourth embodiment, a dedicated format for control information is defined. However, by specifying a value indicating data information in the D / C parameter, data (MAC—e SDU) is used instead of report information (D—D) in the same format.

 1 N

 Can also be transmitted.

 In the fourth embodiment, the report information (D—D) and other mobile station status information are stored in PD.

 1 N

 Forces distinguished by U type Further distinctions may be set.

[0077] Embodiment 5.

The configuration on the mobile station and base station side according to the fifth embodiment is the same as in the first embodiment. FIG. 19 is a diagram illustrating a MAC-e PDU format according to the fifth embodiment. In the figure, ( a) shows the MAC-e PDU format, and (b) shows the piggyback PDU format. In the fifth embodiment, piggyback PDU is added to the last part of MAC-e PDU in addition to Padding (opt).

 In Figure (b), R2 is a substitute for the DZC parameter in the MAC-e PDU, and is not used in the fifth embodiment. Other parameters are the same as in the fourth embodiment.

[0078] When the report information column is attached to the data (MAC-eSDU) and transmitted, the DZC parameter of the MAC-e PDU is set to “With control information” as shown in FIG. Set to “”. At the same time, 011 is used for the PDU type parameter as shown in FIG. 18 of Embodiment 4, and when the base station 103 receives a MAC-e PDU of another value, the piggy back PDU is invalidated. Judge and reject.

 Note that MAC-e PDUs with piggyback PDUs according to Embodiment 5 are transmitted with priority over MAC-e PDUs that transmit only data. At this time, it may be transmitted without MAC-e SD U.

[0079] As described above, according to Embodiment 5, untransmitted data information of mobile station 102 is multiplexed as report information (TRbuffer) in the MAC-e header of the MAC-e PDU and transmitted to base station 103. Therefore, high-speed notification of untransmitted data amount information from the mobile station 102 to the base station 103 becomes possible. As a result, uplink radio resource control (scheduling) in the base station 103 becomes possible, and high-speed control is possible compared to radio resource control by the base station control apparatus 104, so that the communication system is more efficient. This has the effect of improving the throughput of the entire cell.

 In addition, since untransmitted data information is transmitted directly to the base station 103 without going through the base station controller 104, high-speed and high-frequency transmission is possible, and uplink radio resource control in the base station 103 is further improved. The efficiency is improved and the overall throughput of the cell is improved.

[0080] Further, since report information can be transmitted in a dedicated format as necessary, there is an effect that transmission settings different from upper layer data transmission can be performed. In addition, since a format dedicated to mobile station status information is specified, the processing of mobile station 102 and base station 103 that do not need to specify multiple formats as MAC-e PDUs is simplified. There is.

 Further, according to Embodiment 5, information (STATUS, RESET, RESET ACK) used in radio link control section 202 can be diverted to notify base station 103 in addition to base station control apparatus 104. . As a result, these pieces of information can also be used for radio resource control in the base station 103, so that more effective scheduling is possible.

 [0081] Further, the MAC-e PDU format according to Embodiment 5 is similar to the piggyback PDU, which is one of the RLC PDU formats in the conventional standard, and therefore the radio link control unit 202 and the media access control There is no need to specify the format of part 203 separately. For this reason, since the processing circuit can be shared in mounting the mobile station 102, there is an effect that the structure of the mobile station apparatus becomes simple.

 In Embodiment 5, PDU type = 011 is set. However, the selection of the setting is arbitrary, and the specification of the standard is not limited to this embodiment.

 In Embodiment 5, data information for each logical channel is used as report information. However, data information for each logical channel priority, data information for each retransmission buffer, status information of other mobile stations, etc. Use it as reporting information.

 [0083] The STATUS PDU according to the fourth embodiment and the piggyback P DU format according to the fifth embodiment are based on the scheduling from the base station 103 to the mobile station 102, which is only reported from the mobile station 102 to the base station 103. It can also be used for notification of results. In this case, instead of the report information notification column, a column describing the designated transmission time, maximum transmittable speed, etc. is provided, and various mobile station transmissions such as those described in Non-Patent Documents 1 and 2 are provided. Communication control information.

[0084] Further, in Embodiment 4 and Embodiment 5, it is assumed that data information corresponding to E-DCH is measured by MAC-e unit 605 and multiplexed as a part of the MAC-e header. And! /, Similar to the conventional traffic volume measurement function, when measuring in the MAC-d part, it can be multiplexed as part of the MAC-d PDU header. In that case, as shown in FIG. 20, control information multiplexing section 610 is implemented in MAC-d section 603. [0085] FIG. 21 shows measurement of report information (TRbuffer) exchanged between mobile station 102, base station 103, and base station controller 104 according to Embodiment 1-15. It is a figure which shows the flow of condition setting for this. These exchanges are performed separately from the actual data transmission prior to the actual data transmission of the communication service or when the communication service setting is changed during the transmission.

 [0086] First, the base station 103 sends a condition setting request command (EDCH to the base station controller 104).

 Parameter Setup Request) is transmitted (step ST901).

 The parameters notified at this time include, for example, the measurement timing cycle and report timing conditions (discrimination between Periodic and Event trigger, report threshold, etc.). At this time, when setting restrictions on DCH with E-D CH setting, various setting conditions related to DCH may be transmitted together.

 In the base station 103, a condition setting request is generated by the MAC-e unit 1220 and is output as control information (MACcont) from the media access control unit 1203 of the base station 103 to the radio resource control unit 1206 of the base station control device 104 . The exchange of various types of information between the base station 103 and the base station controller 104 is called NBAP signaling (NBAP signaling) and is defined in the standard document TS25.433 and the like. The NBAP signaling information is transmitted by wired communication such as a coaxial cable.

Next, the base station controller 104 sends a report condition setting request (EDCH Parameter Setup

 Request) is notified to the mobile station 102 (step ST902).

 The exchange of various setting information between the base station 103 and the mobile station 102 is called RRC signaling (RR C signaling) and is defined in the standard TS25.331 and the like. The operation on the base station side in step ST902 will be described.

 First, the setting request is output from the radio resource control unit 1206 to the radio link control unit 1202 as control information (RLCcont). Next, the radio link control unit 1202 outputs the DCCH data to the MAC-d unit 1221.

Next, DCH data is output to the physical layer control unit 1204 in the MAC-d unit 1221. Next, DPDCH (DCH) data is obtained by the physical layer control unit 1204 and is wirelessly transmitted from the antenna 1205 to the mobile station 102. The operation of mobile station 102 in step ST902 will be described.

 The mobile station 102 receives a radio signal via the antenna 205, undergoes demodulation and separation processing in the physical layer control unit 204, becomes DCCH data in the reception system MAC d unit 602, and is received by the reception buffer of the radio link control unit 202. Output to 501b. Next, receive buffer 501b to RL

The data is output to radio resource control unit 206 via C control unit 503.

[0088] Next, the mobile station 102 performs operation setting (Configuration or Reconfiguration) based on the setting information, and after the setting is completed, notifies the base station controller 104 of the setting completion (Step ST903).

 The operation of mobile station 102 in step ST903 will be described.

 The radio resource control unit 206 stores the requested setting information in the MAC control unit 607 as control information (MACcont). At the same time, an instruction is issued to the MACe unit 605 in the media access control unit 203 to set the operation.

 When the MAC control unit 607 recognizes that the operation setting has been completed, the MAC control unit 607 notifies the radio resource control unit 206 of the fact as control information (MACcont).

 Next, the radio resource control unit 206 of the mobile station 102 transmits completion information (Setup Complete) indicating that the setting information has been reflected in the mobile station 102 to the base station via the base station 103 by RRC signaling. Notify the controller 104.

 The other detailed operations are the reverse of step ST902, and will not be described here.

 Next, base station control apparatus 104 notifies completion information (Setup Complete) indicating that the setting information is reflected in mobile station 102 to base station 103 by NBAP signaling (step ST904). The detailed operation is the reverse of step ST901 and will not be described.

 Completion information indicating that it has been reflected in the mobile station 102 is notified from the radio resource control unit 1206 of the base station control apparatus 104 to the radio link control unit 1202 and the media access control unit 1203.

Next, the media access control unit 1203 of the base station 103 uses NBAP signaling to generate information (ACK) indicating that the base station 103 has confirmed the completion of setting in the mobile station 102, based on NBAP signaling. This is notified to the ground station control device 104 (step ST905).

 Detailed operations are the same as in step ST901, and thus description thereof is omitted.

[0090] In the prior art, RRC signaling may be performed using E-DCH when the E-DCH communication is already performed using the power transmitted / received using DCCH and DCH.

 In addition, when notifying the condition setting request from the base station controller 104 to the mobile station 102, for example, the CMAC—Measure—REQ command, which is a parameter setting command defined in the conventional standard, is used, and the E—DCH report is used. You may make it add the parameter only for condition setting.

 In that case, the backward compatibility and expandability of the command can be secured by adding the standard version display parameter (or flag) to the CMAC—Measure—REQ command.

 In addition, there is an effect that the configuration of the apparatus can be simplified by using the same command as in the conventional standard.

 Further, in the flow shown in FIG. 21, the exchange between the mobile station 102 and the base station controller 104 and the exchange between the base station 103 and the base station controller 104 can be performed independently. is there.

[0091] Embodiment 6.

 FIG. 22 is a diagram showing a STATUS PDU transmission flow exchanged between the base station control apparatus 104 and the radio link control unit of the mobile station 102 according to the sixth embodiment.

 The STATUS PDU used between the radio link control units (RLC) of the conventional standard is transmitted from the side (Receiver) that receives data (RLC PDU), that is, the base station side in the uplink. In the sixth embodiment, the state of the mobile station (Sender) is notified to the base station (Receiver) by transmission from the data transmission side (Sender), that is, the mobile station.

[0092] Report information (TRbuffer) from MAC-e unit 605 is notified from media access control unit 203 to radio link control unit 202 by control information (MACcont, RLCcont), and communication information data between radio link control units 202 To the base station 103 via the base station control device 104. The detailed transmission / reception operation is the same as the flow shown in FIG. 21 except that the processing via the radio resource control unit (RRC) is omitted, and the description thereof is omitted.

FIG. 23 is a block diagram showing a configuration of media access control section 203 of the mobile station according to the sixth embodiment. The difference from media access control unit 203 of mobile station 102 of Embodiment 1 is that report information (TRbuffer) is also output from MAC-e unit 605 to MAC control unit 607.

 The report information (TRbuffer) input to the MAC control unit 607 is output from the MAC control unit 607 to the radio resource control unit 206 as control information (MACcont) and further transferred to the radio link control unit 202. Next, the radio link control unit 202 becomes DCCH data, and is notified from the mobile station 102 to the base station control device 104 via the base station 103. The radio link control unit 1202 of the base station control device 104 decodes the STATUS PDU and notifies the base station 103 by NBAP signaling. The method of NBAP signaling is not particularly limited. The details of the transmission method from the mobile station 102 to the base station 103 are the same as the flow shown in FIG.

 [0094] In Embodiment 6, the report information (TRbuffer) can be divided into two types. For example, one can transmit and receive via a radio link control unit at a long time interval, and one can be performed in a short cycle by MAC-e PDU. Alternatively, one can also perform the absolute value of the report information (TRbuffer) via the radio link control unit, and one can perform MAC-e PDUs with a short period as increase / decrease (UpZDown) information. Note that what kind of information the report information (TRbuffer) is divided into is not limited to this embodiment. Note that, when report information (TRbuffer) is communicated to the base station 103 by communication between the radio link control units, a STATUS PDU or a piggyback PDU may be used.

 [0095] Further, when transferring to the base station control device 104 via the base station 103, the base station 103 may be able to decrypt its contents independently by V!

As described above, the mobile station 102 transfers the data to the radio link control unit, and the base station 103 can be notified of the absolute value of the report information (TRbuffer) by communication between the radio link control units. Since the values of the report information of the station 102 and the base station 103 can be synchronized, it is possible to avoid a packet transmission error due to a setting difference. Also increased by MAC—e PDU By transmitting only the decrement, the length of the MAC-e PDU can be shortened, thereby reducing the overhead.

[0096] Further, since packet data is generated in a burst manner and the amount of data received by the base station 103 can be grasped, the transmission frequency can be increased by transmitting the report information only when the burst occurs. Can be reduced. As a result, the occurrence of uplink interference can be suppressed, and resources can be routed to other mobile stations 102.

 In addition, since the MAC-e PDU does not need to be frequently notified of an absolute value with a large number of bits, the overhead power S of the MAC-e PDU is reduced, and the occurrence of uplink interference can be reduced.

 Industrial applicability

As described above, the mobile station according to the present invention is suitable for directly and rapidly notifying the base station of transmission data information of the mobile station necessary for uplink radio resource control in the base station. Speak.

Claims

The scope of the claims  [1] A radio link controller that inputs and outputs data to and from the base station via a radio channel with an upper protocol layer;  A media access control unit that inputs and outputs the data through a logical channel with the radio link control unit;  A physical layer control unit that inputs / outputs the data to / from the media access control unit via a transport channel and controls wireless communication with the base station;  In a mobile station including a radio resource control unit that inputs / outputs control data to / from the radio link control unit, the media access control unit, and the physical layer control unit, the media access control unit A mobile station characterized in that report information is multiplexed on a packet data transmission channel and transmitted to a base station.  [2] The mobile station according to claim 1, wherein the report information of the mobile station is arranged in a header portion of a data format transmitted by a packet data transmission channel. [3] The mobile station according to claim 1, wherein the report information of the mobile station is arranged at the last part of a data format transmitted by a packet data transmission channel. [4] The mobile station according to claim 1, wherein a data format transmitted by the packet data transmission channel has an information area indicating presence / absence of report information of the mobile station power.  5. The mobile station according to claim 1, wherein the data format transmitted by the packet data transmission channel has an information area indicating a type of report information from the mobile station.  6. The mobile station according to claim 1, wherein the data format transmitted by the packet data transmission channel has an information area indicating presence / absence of packet data.  7. The mobile station according to claim 1, wherein a data format transmitted by the packet data transmission channel is a dedicated format for transmitting report information from the mobile station. [8] The transfer according to claim 7, wherein the dedicated format is added to a data format transmitted by the packet data transmission channel and transmitted to the base station. Motive.  [9] A retransmission control unit for the packet data transmission channel,  2. The mobile station according to claim 1, wherein the mobile station power report information is multiplexed for each retransmission control cycle in a data format transmitted by a packet data transmission channel.  10. The mobile station according to claim 1, wherein a part of the report information from the mobile station is separated and notified to the base station controller.  [11] A radio link control unit that outputs service data input from a higher protocol layer using the first logical channel and outputs control data using the second logical channel, and the radio link control unit Based on the output data using the output first logical channel and the second logical channel, transport channel data for the service data is created, and the base station performs scheduling. A media access control unit for multiplexing report information to be referred to the transport channel data;  A mobile station having a physical layer control unit that converts the transport channel data multiplexed with the report information into physical channel data for the service data, converts the data into a radio frequency signal, and transmits the radio frequency signal to the base station . [12] A radio link control unit that inputs / outputs data to / from a mobile station via a radio channel with an upper protocol layer;  A media access control unit that inputs and outputs the data through a logical channel with the radio link control unit;  A physical layer control unit that inputs / outputs the data to / from the media access control unit via a transport channel and controls wireless communication with the mobile station;  In a base station having a radio resource control unit that inputs and outputs control data between the radio link control unit, the media access control unit, and the physical layer control unit, The base station, wherein the media access control unit performs radio resource allocation using report information multiplexed on data transmitted from the mobile station through a packet data transmission channel. [13] Between the radio link control unit that inputs / outputs data to / from the upper protocol layer via the radio channel and the radio link control unit, the data is transmitted via the logical channel. A physical layer control unit that controls the wireless communication by inputting / outputting the data via the transport channel between the media access control unit that performs input / output of data and the media access control unit; In a communication system including a mobile station and a base station having a radio resource control unit for inputting / outputting control data to / from a link control unit, a media access control unit, and a physical layer control unit,  The mobile station multiplexes the report information from the mobile station on the packet data transmission channel and transmits it to the base station.  The base station performs radio resource allocation using the received report information from the mobile station. [14] A radio link control unit that inputs / outputs data to / from the base station via a radio channel with an upper protocol layer, and the data via a logical channel between the radio link control unit and the radio link control unit. A media access control unit that inputs and outputs  The physical layer control unit that controls the radio communication with the base station by inputting / outputting the data to / from the media access control unit via a transport channel, the radio link control unit, and the media access control. Mobile station equipped with a radio resource control unit that inputs and outputs control data between the mobile station and the physical layer control unit, multiplexes the report information of the mobile station power on the packet data transmission channel and transmits it to the base station And  A radio resource allocation is performed using report information from the mobile station received by a base station.